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Comparative evaluation of some cattle breeds and their crosses were done to provide a basis for recommendations on the direction of breeding and management of cattle for enhanced productivity in semi-arid and arid areas of Kenya. Data from 1055 calves of Small East African Shorthorn Zebu (Z), Bor...


Mwandotto, B.A.J.Carles, A.B.Cartwright, T.C.[Weaning and 18-month weights of Boran, East African Shorthorn Zebu and Sahiwal breeds or crosses in Kenya]Weaning and 18-month weights of Boran, East African Shorthorn Zebu and Sahiwal breeds or crosses in Kenya

The reproductive performance of Boran, Horro and Barka cattle and their F1 crosses with Friesian, Jersey and Simmental breeds at 4 research stations was investigated. The environmental conditions covered in the study represented wet and dry conditions. Detailed information provided on the number ...


Tegegne, AzageGalal, E.S.E.Kebede, B.[A study on the reproduction of local zebu and F1 crossbred (European x zebu) cows. I. Number of services per conception, gestation length and days open till conception]A study on the reproduction of local zebu and F1 crossbred (European x zebu) cows. I. Number of services per conception, gestation length and days open till conception

Historical account of the introduction of trypanotolerant cattle breeds to Zaire. Successes achieved under good feeding and management conditions on both large and small farms highlighted. Current developments in N'Dama cattle breeding in the region and their extension to the new land areas revie...


Mortelmans, J.Kageruka, P.[Trypanotolerant cattle breeds in Zaire]Trypanotolerant cattle breeds in Zaire

Data from slaughter (LWT) and warm carcass (HCWT) weights and dressing-out percentages (CYD%) of 209 Uda (Sahel) and 26 Djallonke sheep and 105 Djallonke goats were analysed by fitting a least-squares fixed-effects model. The model consisted of the effects of breed and sex on LWT and CYD% and the...


Dawa, O.Tawah, C.L.Mawaina, T.[Carcass characteristics of adult sheep and goat breeds in the subhumid and semi-arid zones of Cameroon]Carcass characteristics of adult sheep and goat breeds in the subhumid and semi-arid zones of Cameroon

Analyzes mating/parturition records on Ethiopian sheep and goat breeds, to study the effect of the duration of mating season on flock fertility, with emphasis on data related to cumulative percentage of females conceiving at different intervals of the mating season.


Galal, E.S.E.Awgichew, K.[A note on the relationship between duration of mating season and flock fertility in some Ethiopian breeds of sheep and goats]A note on the relationship between duration of mating season and flock fertility in some Ethiopian breeds of sheep and goats

The oestrus cycle and its manifestation in the Angoni, Barotse and Boran cattle are investigated. The time of onset and manifestation of oestrus and ovulation are observed, and changes in the size, colour, appearance and contents of the cervical organs reported.


Rakha, A.M.Igboeli, G.Hale, D.H.[The oestrus cycle of Zebu and Sanga breeds of cattle in Central Africa]The oestrus cycle of Zebu and Sanga breeds of cattle in Central Africa

Boer goats evolved in southern Africa from indigenous African and introduced European stock. Breed standard of the Boer goat breeder's association stipulate colour to be white with red head and blaze, pigmented skin and good, functional conformation. Boer goats are hardy, graze a wide spectrum of...


Casey, N.H.Niekerk, W.A. van[The Boer goat. I. Origin, adaptability, performance testing, reproduction and milk production]The Boer goat. I. Origin, adaptability, performance testing, reproduction and milk production

The luteolytic effect of prostaglandin F2á (PGF2á) during the confirmed luteal phase of the oestrous cycle was evaluated in ten Boran and ten Boran x Friesian cross-bred heifers. Following injection with 25mg Lutalyse, animals were bled every 6 h for 96 h and plasma progesterone (P4) determined ...


Mutiga, E.R.Mukasa-Mugerwa, E.Tegegne, Azage[Luteolytic effect of prostaglandin F2X in Boran and Boran X Friesian cross-bred heifers]Luteolytic effect of prostaglandin F2X in Boran and Boran X Friesian cross-bred heifers

Milk yield performances in Kenana and Butana cows were examined to determine the influence of age on production. The mean milk yields for the Kenana and Butana herds were 2136 ± 168 and 1807 ± 592 kg produced in a mean lactation period of 283 ± 40 days and 283 ± 57 days respectively. In both herd...


Abdalla, E.A.Nasr, A.M.Khalafalla, A.M.EL Shafie, S.A.[The influences of age on lactation length and milk yield in Kenana and Butana cows]The influences of age on lactation length and milk yield in Kenana and Butana cows

In a comparison of water intake of Boran and Angus-Boran steers over three years, the crossbreds consumed more water per head than the Borans, particularly during the hotter months. There was little difference between the groups on the basis of intake per unit liveweight, and intake per unit live...


Wigg, P.MOwen, M.A.[Studies on water consumption, night grazing and growth of Boran crossbred steers at Kongwa, Tanzania]Studies on water consumption, night grazing and growth of Boran crossbred steers at Kongwa, Tanzania

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